Check; Thermistor Resistance Check - Daikin E Series Service Manual

Check

3. Check

3.1

Thermistor Resistance Check

Check No.2 Remove the connectors of the thermistors on the PCB, and measure the resistance of each
thermistor using tester.
The relationship between normal temperature and resistance is shown in the graph and the
table below.
Temperature (°C)
–20
–15
–10
–5
0
5
10
15
20
25
30
35
40
45
50
202
Thermistor R25°C=20kΩ B=3950
For the models in which the thermistor is directly mounted on the PCB.
211.0 (kΩ)
150
116.5
88
67.2
51.9
40
31.8
25
20
16
13
10.6
8.7
7.2
RTH1
Tester
(R3460)
SiBE04-624
Service Diagnosis